RADEBAUGH, J.; LORENZ, R. D.; LUNINE, J.I.; WALL, S. D.; BOUBIN, G.; REFFET, E.; KIRK, R. L.; LOPES, R. M.; STOFAN, E. R.; SODERBLOM, L.; ALLISON, M.; JANSSEN, M.; PAILLOU, Philippe; CALLAHAN, P.; SPENCER, C.; THE CASSINI RADAR TEAM

doi:10.1016/J.ICARUS.2007.10.015

Metadatos

Mostrar el registro completo del ítem

Licencia de uso del documento

RADEBAUGH, J.
Lunar and Planetary Laboratory [Tucson] [LPL]
Department of Geological Sciences [BYU]

LORENZ, R. D.
Johns Hopkins University Applied Physics Laboratory [Laurel, MD] [APL]

LUNINE, J.I.
Lunar and Planetary Laboratory [Tucson] [LPL]

Idioma

Article de revue

Este ítem está publicado en

Icarus. 2008, vol. 194, n° 2, p. 690-703

Elsevier

Resumen en inglés

Thousands of longitudinal dunes have recently been discovered by the Titan Radar Mapper on the surface of Titan. These are found mainly within ±30° of the equator in optically-, near-infrared-, and radar-dark regions, indicating a strong proportion of organics, and cover well over 5% of Titan's surface. Their longitudinal duneform, interactions with topography, and correlation with other aeolian forms indicate a single, dominant wind direction aligned with the dune axis plus lesser, off-axis or seasonally alternating winds. Global compilations of dune orientations reveal the mean wind direction is dominantly eastwards, with regional and local variations where winds are diverted around topographically high features, such as mountain blocks or broad landforms. Global winds may carry sediments from high latitude regions to equatorial regions, where relatively drier conditions prevail, and the particles are reworked into dunes, perhaps on timescales of thousands to tens of thousands of years. On Titan, adequate sediment supply, sufficient wind, and the absence of sediment carriage and trapping by fluids are the dominant factors in the presence of dunes.< Leer menos

Palabras clave

Titan

surfaces

Saturn

satellites

Metadatos

Licencia de uso del documento

Dunes on Titan observed by Cassini Radar

Idioma

Este ítem está publicado en

Resumen en inglés

Palabras clave

DOI

Orígen

Centros de investigación